Street-flushing apparatus.



PATENTED MAR. 24, 1908.

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"No. 882,626. PATENTED MAR. 24, 1908. D. GONNELLY & 0. E. SGHAPER.

STREET FLUSHING APPARATUS.

APPLICATION FILED JUNE 10, l905 In 061F601.

UNITED STATES enrnrvr ent ies.

DANIEL CONNELLY, 01- tLlfiVl lbAN ll ElGlllS, AND (LllRISTIAN E.SCHAFER, OF CLEVELAND,

()lllt).

STREET-FLUSHING APPARATUS.

Specification of Letters Patent.

Patented March 24, 1908.

Application filed June 10, 1905. Serial No. 264,569.

To (LZZ whom it may com-em:

Be it known that we, DANIEL CONNELLY, a citizen of the United States,residing at Cleveland lleights, in the. county of Cuya hoga and State ofOhio, and Cnnisrnvn E. SOHAFER, a citizen ol the United States, residingat Clevelarul in the co'unty ol' Cuyahoga and State of Ohio. haveinvented a certain new and useful lmproven'ient in Street FlushingApparatus, 01' which the following is a full, clear, and exactdescription, reference being had to the accompanying drawlugs.

ltlushing wagons are mainly employed for washing city pavements. 'lheyinclude a water tank and a tank ol compressed air by means of whichthe'wetcr is discharged with greater or less l'orcc through nozzleswhich direct the streams of water against the pavements at. the properangle.

The object of this invention is to provide a flushing wagon of moderatecost which will be. properly balanced. on the trucks whether full orempty and which can be conveniently put into condition to! use and usedunder the various conditions existing at di'tl'erenl' places.

.In the drmving, Figure l is a side elevation of a 'llushin; wagon.embodying the invention. Fig. 1 is a rear end view thereol. Fig. 3 is acentral verl ical section through one of the valves containing verticalpipes to the lower end of which discharge. nozzles are secured. Fig. 4is a central vertical section through the valve mechanism by whichconnection can be established between the water tank and air tank.

llel'erriug to the parts by letters A repre sents a cylindrical airlight water tank, preterably made of sheet metal. This water tank islirinly secured by means ol' straps u on the. skeleton wagon body it.The water discharge pipe .1, which is connected with the bottom of thistank near its middle, is also connected with the transverse pipe l). Thevertical pipes l) are connected with the ends of the pipe 1), and thedisclnirge nozzles e are connected with the ends of said pipes l).

K represents the within the water tank and extends out through both endsthereof. This tank may bl completed and made thoroughly air tight beforebeing secured within the water tank; and, because of its location, thedistribution of weight upon the wagon compressed air tank which islocated axially l l l i l l l wheels and springs is substantia ly thesome at all times whether the water tank be full or empty. In llushingwagons, as heretofore constructed, the con'rpressed air tank has beenformed within the water tank at one end thereol by an internalpartition. It is dillicult and somewhat expensive tomake the jointsbetween this partition and the walls of the tank air tight. Then againwhen such a tank is tilled a greater proportion of the weight is borneby the rear wheels (provided the air tan k is at the front end of thewater tank) than is the case when the tank is nearly empty of water.

M represents the pipe through which the water tank is tilled. It isconnected with the bottom of the water tank at a point near the rear endthereof. it llexible hose through which connection is made between thispipe and the hydrant may be screwed upon the rear end oi" said pipe.\Vhen not in use this llexible hose may hang over the projecting end ofthe air tank, being prevented from slipping oil of the same. by thellange it along the upper edge of the rear end of said air tank. A pipeN connected to the top of the extended rear end of the air tank likewiseconnected with the water tank, and it contains at a a reducing valve ofany approved construetion, so that whatever may be the air pressurewithin the tank li one may have any other desired pressure less thanthat in the air tank within the water tank. There is another connectionprovided between the air and water tanks; a pipe 1. connected with thelop ol' the air tank extends upward and out through the top of the watertank. Valve mechanism is provided for this pipe by means of whichcommunication between the two tanks may be prevented or permitted, asrequired. The valve mechanism shown is constructed as follows:

A valve casing 'l is screwed onto pipe P, and it contains a valve 13which will normally be closed by the air pressure within the air tank,and by a spring it. Over this valve is a hood S which screws into aflanged ilate secured to the water tank and having oles therein. in thetop of this hood is a stutling box through which a valve operating rod tslides, said rod having a horizontal slot t in its upper end. Aneccentric V is pivoted to the top of the stalling box, and lies in saidslot 0', and has an operating handle 12. TO

asst CGPY establish free communication between the wagons which areoperated by men whose two tanks, one turns this cam so as to push I Theair may then flow freely past valve t and through holes t said rod tdownward.

in the valve easing into the hood and thence into the water tank A valvecasing R containing an ordinary check valve 1* is secured to the watertank over a hole therein. The valve opens inward, but has a light springr around its stem tending to close it. W hen the wagon is in service theair pressure in the tank holds it firmly closed. A dust hood X issecured over the valve casing tho purpose being to prevent the dust olthe street from settling on the valve seat. One way of getting thewagonready. for service is to lirst fill the water tank with water,which compresses the air and forces it into the air tank past valve 12,which will close automatically to prevent the air from flowing from. theair tank into the water tank; then open the nozzle valves and allow thewater to flow from tank A. While the water is so 'liowing out, the valve1" will open automatically to allow air to get into tank A. Finally, thewater tank is again iilled with water, thereby compressing more air intotank K. When the reducing valve at n has been properly adjusted thewagon is ready for service. Another way to get it ready is to close allvalves leading from the air tank, and force compressed air into saidtank,-the pipe in connected with the projecting front end. of said tankbeing provided for that purpose.

The vertical pipes E are constructed to serve as valve casing, and eachof said pipes contains two valves. One valve ll is moved downward to itsseat by a "spring h, and is held down additionally by the pressure ofwater from tank A. Its stem 7t ex tends out through the top of saidpipe, whereby it may be operated by a lever I near the seat,- throughsuitable transmitting mechanism, as for example the bell crank lever Jand the two links 7', j. The other valve F is moved upward to its seatby a spring f, and away from its seat by the pressure in the tank. Thepurpose'o'f this valve is to prevent apparatus from workinginefliciently and to prevent the escape of air in case the driver allowsall of the water to run out before he closes yalve II: Under ordinaryconditions the reducing valve at n is set so that the pressure in markwill be about ten pounds.

Iii/that event the spfing frwill be set for about eight pounds. If,therel o'r tlrepressure n the tank ever gets below eight vent the escapeof the water, or air, even though valve H remains open. Since theefiiciency of flushing wagons is dependent upon the forceful expulsionof the water from the nozzles, it is evident that this valve is avaluable feature of construction inllushing v pounds .this valve willclose automatically and preintelligence is not always of a very high 0rd e r.

l-laving described our invention, we claim:

1.. In a llushing wagon, the combination of a water tank secured uponthe wagon. body and having a valve controlled discharge pipe, an airtank extending horizontally through the water tank and out through bothends thereof, and a valve-controlled connection between said tanks.

2. In a flushing wagon, the combination of a horizontal water tanksecured upon the wagon body, and having a valve controlled dischargepipe, an air tank which extends horizontally through the water tank andout through one end thereof, a pipe connected with the projecting end ofsaid air tank and with the 'water tank, and a reducing valve in saidpipe. I

In a flushing wagon, the combination of a water tank secured upon thewagon body and having valve controlled discharge pipe, an air tankextending horizontally through the water tank from end to end, andproject- .ing through the rear end of said tank, and a llangc securedalong the upper edge of the projecting rear end of said air tank, saidwater tank having, near its rear end, a valve controlled feed pipe towhich a flexible pipe may be connected.

4. In flushing wagon, the combination of a horizontal water tank securedupon the wagon body, an air tank in the water tank, a valved pipeconnected with the air tank and extending out through the water tank, ahood secured to the water tank over said pipe, a alve operating rodextending through the wall ol said hood, and mechanism mounted upon theoutside of said hood for operating said rod.

5. In a flushing wagon, the combination of a water tank, an air tankcontained therein, a pipe connecting said tanks, a discharge pipeconnected with the water tank having a discharge nozzle connected withsaid ipe, a valve in said pipe, mechanism operab c from the drivers seatlor moving said valve, a second valve in said discharge pipe and aspring for closing the same against the pressure in the tank.

6. In a llushing wagon, the combination-oi" a water tank, an air tank, apipe connecting said tanks, and a discharge pipe connected with thewater tank, with a valve in. said discharge pipe, mechanism foroperating said valve, and aself closing valve in said dis "c-lntrge pipeprovided with a spring operating to close lilICS'kl HiLUil gtllllSt,the. pressure in the tank. v

7. ln. a llushing wagon, the co'n'rbinati on of a water tank, an airtank, a pipe conneo i'iig said tanks, and a disclntrge pipe connectedwith the water tank, with a alvc in said discharge pipe and movableoutward toward its Beat, whereby the pressure in the tanks tends Intestimony whereof, we hereunto am):

to hold the valve closed, mechanism for our signatures in thepresence01' two wit- I" Opening said Valve, and a second valve in g messes.

- said discharge pipe which is movableinward i DAN [Eli (10h N ELLE.

5 against its seat, whereby the pressure fronl' CHRISTIAN I). SCHAFER.

the tank tends to 0 en saidvalve, and a Witnesses: v spring operating to0 use the SzLUlG, suhstan- E. B. (ilLCIIRlS'J,

Liaily as specified. E. L. Tmns'rox.

